Vietnam typically produces two to three rice crops per year, depending on region and irrigation. The two main seasons are:
The autumn harvest is often the larger of the two, especially in the Mekong Delta, which produces over half of Vietnam's rice.
In areas with controlled water (e.g., parts of the Red River Delta), a summer crop (planting Feb–Mar, harvest Jun–Jul) is possible.
Typhoons, flooding, or drought can shift dates by weeks. The government monitors and forecasts via the Ministry of Agriculture and Rural Development (MARD).